Kadir Çeven
Kadir Çeven

Computational Physicist — Quantum Many-Body Systems & Scientific Software

I work on the numerical simulation of quantum many-body systems — nonequilibrium dynamics, quantum chaos, and disordered systems — using methods from exact diagonalization to neural-network quantum states. Alongside the physics, I write and maintain open-source scientific software in Julia and Python. I’m a Ph.D. candidate at the University of Göttingen.

In practice, that means building and validating exact-diagonalization codes, constructing symmetry-resolved Hilbert spaces, implementing iterative eigensolvers, and exploring neural-network quantum states as an alternative to standard variational methods — with benchmarking and reproducibility built into the process rather than treated as an afterthought.

I’m increasingly interested in applying this background to problems in quantum simulation, quantum algorithms, and scientific computing more broadly — areas where physics-informed modeling and larger-scale computation meet.

Outside of physics, I spend time with photography, travel, and cinema — particularly auteur and festival films — and I play piano, strictly as an amateur.

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Experience

Research Assistant

Georg-August-Universität Göttingen — Göttingen, Lower Saxony, Germany

Design and implement numerical methods for simulating nonequilibrium dynamics in closed quantum many-body systems, from algorithm design through implementation, validation against known limits, and benchmarking against established numerical methods. Collaborate within DFG Research Unit FOR 5522, a multi-institution effort spanning Europe and the US.

Research Intern

Technische Universität München — Munich, Bavaria, Germany

Contributed to a Python library implementing neural-network quantum states for fermionic systems, building ground-state solvers for atomic and molecular Hamiltonians.

Research Intern

Johannes Gutenberg-Universität Mainz — Mainz, Rhineland-Palatinate, Germany

Worked on hardware integration and sensor validation for the Project 8 physics experiment.

Education

Ph.D. in Physics

Georg-August-Universität Göttingen — Göttingen, Lower Saxony, Germany

Nonequilibrium quantum many-body dynamics, quantum chaos, and disordered systems. DFG Research Unit FOR 5522.

M.Sc. in Physics

Bilkent University — Ankara, Turkey

Thesis: neural-network quantum states for a two-leg Bose-Hubbard ladder under synthetic magnetic flux — a gauge-field setting related to topological cold-atom physics.

B.Sc. in Physics

Bilkent University — Ankara, Turkey

Papers
Software

SymBasis.jl — an open-source Julia package that constructs symmetry-preserving bases for quantum many-body Hilbert spaces, reducing problem size for exact diagonalization and related methods.

SymBasis.jl

Exact diagonalization and related methods scale poorly with system size unless symmetries are exploited to shrink the effective Hilbert space. SymBasis.jl automates the …

Contact
Open to conversations about research collaborations, open-source contributions, or roles in computational physics and scientific computing. Email is the fastest way to reach me — code, publications, and CV are linked above.